The frontal bone is a broad or flat bone, placed forward and upward and has two portions: one vertical, the scale, and one horizontal, the orbital and nasal cavity ceilings.
Outer Face: this face is convex and in it we find the following structures:
Frontal Tuber & #8211; 3 centimeters above the supraorbital border
Superciliary Arches & #8211; protrusions extending laterally to the glabella
Glabela & #8211; between the two superciliary arches (anthropometric point)
Metopic Suture & #8211; It is found in some rare cases and is located just above the glabella and extends to the bregma along the median sagittal line. This suture, in childhood, divides the bone in two and can remain for life.
Supra-orbital notch or foramen & #8211; passage of supraorbital vessels and nerves.
Nasal Notch & #8211; rough and irregular range
Nasal Spine & #8211; is located anteriorly and in the center of the nasal notch
Blind foramen & #8211; it is located at the termination of the frontal crest and it is where the Dura
Orbital and Nasal Cavity Ceilings
They form the roof of the orbit, the ethmoid notch (separates the two orbital laminae) and the frontal sinus ostia (anterior to the ethmoid notch). This sinus makes the frontalis a bone with hollow pneumatic bone characteristics.
THE Front hinges with twelve bones: sphenoid, ethmoid, parietal (2), nasal (2), jaw (2), lacrimal (2) and zygomatic (2).
|FRONT & #8211; PREVIOUS VIEW
|Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21st. Rio de Janeiro: Guanabara Koogan, 2000|
|FRONT & #8211; BOTTOM VIEW
|Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21st. Rio de Janeiro: Guanabara Koogan, 2000.|
Eight (08) bones